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How lattice degrees of freedom affect the topological properties of electrons remains rarely explored. Here, Moeller et al. predict non-trivial topological effects in long-lived polaron bands by studying a two-dimensional model stabilized by realistic electron-phonon coupling.
Synthesis of valuable polyene molecules under mild conditions and with good functional groups tolerance is of paramount importance. Here, the authors show the versatile copper-catalyzed successive dehydrogenation of a variety of organic substrates affording highly conjugated unsaturated products.
Controlling selectivity in the hydrosilylation of allenes poses serious challenges in terms of product stereochemistry. Here the authors show that the title reaction proceeds with excellent (Z)-selectivity by use of a cobalt catalyst in the presence of phosphine-based ligands.
Understanding the electromagnetic responses at subwavelength scales is important for achieving tunability. Using a combination of the near-field and far-field spectroscopy, the authors demonstrate a heavy fermion metamaterial with tunable dual-band optical responses by selectively and separately modifying the 4f and 5d band electrons.
Marginal zone B (MZB) cells shuttle between the marginal zone and lymphoid follicle to capture and present peripheral blood antigens. Here the authors show that shear force, such as blood flow from the sinus around the follicle, is a directional cue that induces MZB migration on ICAM-1, and that S1P signaling inhibits this directional migration.
Understanding of Late Devonian mass extinction mechanisms is poor due to imprecise stratigraphies. Here, using cyclostratigraphic techniques, the authors present a global orbitally-calibrated chronology and reveal the key role of astronomically-forced Milankovitch climate change.
Microbiota is often a complex mixture of multiple coexisting species and strains with high level of phenotypic and genomic variability. Here, Albanese and Donati develop StrainEst for estimating the number and identity of coexisting strains and their relative abundances in mixed metagenomic samples.
During neurotransmission synaptic vesicles are filled with glutamate by vesicular glutamate transporters (VGLUTs). Here, authors image intact neurons and show that in synaptic vesicles VGLUT functions as a glutamate/proton exchanger associated with a channel-like chloride conductance.
Excitotoxicity due to excessive glutamate release causes oxidative stress and neuronal death, and is a feature of many brain diseases. Here the authors show that protein kinase D1 is inactivated by excitotoxicity in a model of stroke and that its activation can be neuroprotective.
Protein phosphatase 2A (PP2A) forms different holoenzymes but little is known about the disassembly of these important signalling complexes. Here the authors present the crystal structure of PP2A bound to TOR signaling pathway regulator (TIPRL) and give insights into the methylation-dependent disassembly of PP2A holenzymes.
Most melanoma patients do not respond to anti-PD1 therapy. Here, the authors show that TNFα blockade synergizes with anti-PD-1 by preventing anti-PD-1-induced CD8+ T cell death and TIM-3 expression on such cells.
CONSTANS promotes flowering under long-day conditions in Arabidopsis but is rapidly degraded in short-day conditions. Here the authors show that the blue-light photoreceptor FKF1 can interact with the E3 ligase COP1 in a light-dependent manner and prevent degradation of CO in long-day conditions.
Activation of autophagy, via the transcription factor TFEB, is a promising strategy to treat metabolic diseases. Here, the authors report three novel classes of small molecules that promote TFEB nuclear translocation, and provide evidence for the therapeutic efficacy of these compounds in mice and worms.
Horticultural lettuce varieties vary considerably in phenotype. Here, via RNA-seq of 240 different lettuce accessions, the authors identify loci and expression patterns associated with flavonoid and anthocyanin content and show that cultivated lettuce likely arose via a single domestication event.
The Iberian ribbed newt Pleurodeles waltl has a wide spectrum of regeneration abilities. Here, Elewa et al. sequence its ~20 Gb genome and transcriptome to investigate the molecular features underlying its regenerative capacities.
Polymer binders in battery electrodes can affect their performance, however design rules are still lacking. Here, the authors reveal why polyelectrolyte binders outperform charge-neutral alternatives in lithium–sulfur batteries, showing how cationic polyelectrolytes can regulate ion transport selectively.
Mycobacterium tuberculosis WhiB1 is a DNA-binding protein with a NO sensitive [4Fe-4S] cluster. Here the authors present the NMR structure of WhiB1 and suggest how loss of the iron-sulfur cluster through nitrosylation affects WhiB1 DNA binding and leads to transcriptional reprogramming.
While transitions between active and repressive chromatin states are essential for differentiation, little is known regarding their role during development of the brain in Drosophila. Here, the authors investigate the large scale chromatin remodelling taking place during fly neural development.
Some wounds trigger regeneration, while others simply heal but how this is regulated is unclear. Here, by manipulating ERK and Wnt signalling pathways, the authors create headless planarians and finless zebrafish and show that wounds that normally only trigger wound healing can activate regeneration of heads and bones.
An understanding of the dynamics of drug binding and unbinding processes is important for drug discovery. Here, the authors give insights into the binding mechanism of small drug-like molecules to human Hsp90 by combining thermodynamics and kinetics studies as well as molecular dynamics simulations.